If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
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129763
2-Methyl-3-butyn-2-ol
98%
Synonim(y):
Dimethyl ethynyl carbinol
Wybierz wielkość
| Rozmiar/SKU | Dostępność | Cena netto |
|---|---|---|
100 mL | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 183,00 zł 155,55 zł |
250 mL | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 227,00 zł |
1 L | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 422,00 zł |
Informacje o tej pozycji
155,55 zł
Cena katalogowa183,00 złZaoszczędź 15%vapor pressure
15 mmHg ( 20 °C)
Quality Segment
assay
98%
form
liquid
autoignition temp.
662 °F
expl. lim.
16.6 %
refractive index
n20/D 1.42 (lit.)
bp
104 °C (lit.)
mp
2.6 °C (lit.)
density
0.868 g/mL at 25 °C (lit.)
functional group
hydroxyl
SMILES string
CC(C)(O)C#C
InChI
1S/C5H8O/c1-4-5(2,3)6/h1,6H,2-3H3
InChI key
CEBKHWWANWSNTI-UHFFFAOYSA-N
General description
Application
- Aryl-2-methyl-3-butyn-2-ols via Pd-catalyzed Sonogashira coupling reaction with various aryl bromides.
- 2-Methyl-3-buten-2-ol (MBE) by Pd/γ-Al2O3 catalyzed selective hydrogenation reaction. MBE is applicable as an important intermediate in the synthesis of vitamin A.
- Diarylacetylenes via Pd-catalyzed Sonogashira coupling reaction with aryl chlorides in the presence of Cs2CO3 as a base.
- Optically active propargylic alcohols by enantioselective addition reaction with various aldehydes in the presence of Zn(OTf)2 and N-methylephedrine.
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Ta pozycja | |||
|---|---|---|---|
| description 98% | description 98% | description 98% | description 98% |
| assay 98% | assay 98% | assay 98% | assay 98% |
| Quality Level 200 | Quality Level 100 | Quality Level 200 | Quality Level 100 |
| form liquid | form - | form - | form solid |
| refractive index n20/D 1.42 (lit.) | refractive index n20/D 1.409 (lit.) | refractive index n20/D 1.410 (lit.) | refractive index n20/D 1.514 (lit.) |
| bp 104 °C (lit.) | bp 112 °C (lit.) | bp 114-115 °C/749 mmHg (lit.) | bp 94-96 °C/10 mmHg (lit.) |
| mp 2.6 °C (lit.) | mp - | mp - | mp 23-25 °C (lit.) |
Słowo ostrzegawcze
Danger
Kody zagrożeń
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 2 - Repr. 2 - STOT SE 3
Narządy docelowe
Central nervous system
Klasa składowania
3 - Flammable liquids
Co się dzieje?
WGK 1
Temperatura zapłonu (°F)
66.2 °F - closed cup
Temperatura zapłonu (°C)
19 °C - closed cup
PPE (środki ochrony indywidualnej)
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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